stream-peek-char

Generic Function

Summary

A generic function used by
peek-char
that returns a character on a given stream without removing it from the stream buffer.

Package

stream

Signature

stream-peek-char
stream
=>
result

Arguments

stream

A stream.

Values

result

A character or
:EOF
symbol.

Description

The generic function
stream-peek-char
is used to implement
peek-char
, and corresponds to a peek-type of
nil
. The default method reads a character from the stream without removing it from the stream buffer, by using
stream-read-char
and
stream-unread-char
.